Anderson says she was paid $3,500 to keep Sheen company that night, which began with a rowdy dinner at posh eatery Daniel followed by drinks. (Sheen's ex-wife Denise Richards was present for the meal.)

"I never expected the night would unfold the way it did," Anderson told GMA.

"He definitely was growing more intense as the night …went on. It's hard to say being that it was my first time hanging out with him if it was normal of his everyday behavior or not," Anderson said.

Anderson also claimed she was offered $20,000 to stay quiet about the headline-making incident.

Sheen's attorney denies all of her accusations.

"We will defend this lawsuit vigorously and will never pay her a dime," Yale Galanter told ABC. "These allegations against Mr. Sheen are completely false, and are a blatant attempt to cash in on his celebrity."